Oil-cup



(No Model.)

R. A.' FISHER.

`ou. CUP.

PatentedV Feb. 12,- 1884.

PIE 2 WITNEEEEE yf m .UNITED STATES PATENT OFFICE.

ROBERT lFISHER, OF SAN FRANCISCO, CALIFORNIA.

OIL-CUP.

SPECIFICATION forming part of Letters Patent No. 293,237",l datedFebruary 12, 1884.

l Application filed June 9:2, 1883. (No model.)

.T tlf/ZZ whom it may concern/l' Beit known that I, ROBERTA. Flsnnn, of

San Francisco, in the county of San Francisco and State of California,have invented a new and useful Improvement in Oil-Oups, of which thefollowing is a specification.

The objects of my invention are to provide an oil-cup having a balhvalvewhich is operated in an automatic manner to open and close the oil-port,and also to limit the throw of the valve. These objects I accomplish bythe means illustrated in the accompany-ing drawings, in whic Figurel isa vertical section of my oil-cup. Figs.f2, 3, and 4 are sections inelevation,

` showing the regulator or upper valve-seat, the

lower valve-seat, valve, andIeed-pipe of my oil-cup.

A is the body of my oil-cup, which may be made of any suitable metal,and thus do away with the expensive glass lining or cup within anopen-sided metal body, now so largely in use to indicate the quantityOflubricant contained in the cup, since the quantity of oil for.

running a given length of time can be gaged to a certainty and none beallowed to run to waste. The cup is provided with the usual screw-cap orcover, B, and a neck or stem, C, by which it is attached to the machinewhich it is intended to lubricate, the neck or stem C having also theusual oil-passage. The bottom of the interior of the cup is hollowed outat D, to form a chamber and receive a portion ofthe ball-valve E, whichprovides a seat for the valve, and when the ball is at rest shuts downover the opening or oil-passage I?. A screwstem, G, passes through thecap or cover, and is provided at its lower end with a hemisphericalchamber, H, and thus forms ah upper seat for the ball-valve, and when inoperation limits the upward movement or throw of the valve,

chambers or seats willv also prevent the ball from rolling sidewise inturning curves on rail- It will thus be seen that the valveoperatesbetweentwo spherical chambers or seats, one of which is stationary inthe bottom of the cup and the other movable within the end of the stem,which latter can be so adj usted as to shut down over the ball-valve andlimit its throw to the thirty-second of an inch, if necessary; and hencemy invention differs from all others,A 'as cranks, cams, andconnecting-rods can be lubricated, even where there is considerablemotion or accelerated speed of the parts, even if the machinery isinclined or out of a horizontal position, and with great economy in thedistribution of the lubricant to the parts, as there is no discharge ofoil when the machinery is at rest.

I am aware that a tubular column has heretoforebecn arranged in thecenter of an oilcup as a support for aball-valve that controls theoil-passage through said column, the ballvalve having-both a rotary andvertical move* ment, the latter being controlled by a set-screw that ispassed through the cover of the oil-cup. rIhis, however, I do not claim;but,

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is i An oilcup having a screw cap or cover, ascrew-stem passed through said cover, two hemispherical chambers, one ofwhich is formed ss A in the bottom ofthe cup in an axial line with theROBERT A. FISHER. [L s] IVitnesses:

C. W'. M. SMITH,

Onis. E. KELLY.

